Simple motion of gears

The following are some schematic diagrams about the gear motion mechanism:

1. Definition of motion sketch: A sketch that represents the relative position of components and motion pairs in a certain proportion with specified symbols and lines and can fully reflect the characteristics of the mechanism.

2. The motion diagram of external meshing gear and internal meshing gear can be used to represent the motion of gears.

3. The meshing motion diagram of bevel gear is also a common diagram of gear motion mechanism.

4. You can find more information about the schematic diagram of the gear motion mechanism in the mechanical design tutorial, mechanical design course design and other materials.

There are many common types of gear motion mechanisms, and the following are some of them:

1. Fixed transmission ratio gear mechanism: also known as circular gear mechanism, it is the most common and widely used gear mechanism. It consists of a pair of circular gears with constant transmission ratio.

2. Variable transmission ratio gear mechanism: also known as noncircular gear mechanism, in which at least one gear is noncircular. This mechanism can realize the change of transmission ratio. Common gear mechanisms with variable transmission ratio include helical gear mechanism and worm gear mechanism.

3. Plane gear mechanism: The relative motion of the gear shaft during transmission is a plane motion mechanism. Common planar gear mechanisms include parallel shaft gear mechanisms and cross shaft gear mechanisms.

4. Spatial gear mechanism: The relative motion of the gear shaft during transmission is a spatial motion mechanism. Common spatial gear mechanisms include bevel gear mechanism and worm gear mechanism.

The transmission efficiency of the gear mechanism can be improved by the following methods:

1. Select appropriate gear material and manufacturing process: Using high-quality gear materials, such as cemented carbide or high-strength steel, can reduce the friction loss and wear of gears and improve transmission efficiency. At the same time, precision manufacturing technology can ensure the accuracy and fit of gears, reduce meshing clearance and improve transmission efficiency.

2. Optimization of gear meshing mode: Choosing appropriate gear meshing mode, such as spur gear, helical gear, involute gear, etc., can reduce the sliding friction loss during gear meshing and improve transmission efficiency.

3. Strengthen the lubrication and cooling of gears: Good lubrication and cooling can reduce friction and heat loss in gear movement and improve transmission efficiency. Choosing the right lubricant to ensure the normal operation of the lubrication system can effectively reduce the friction loss of gears.